English Channel and North Sea 1943–1945, Baltic 1944–1945, Fortress Europe 1943–1944, France and Germany 1944–1945, Biscay Ports 1943–1944, Ruhr 1943–1945, Berlin 1944, German Ports 1943–1945, Normandy 1944, Rhine, Biscay 1943–1944, Sicily 1943, Italy 1943, Salerno.
No. 424 Squadron RCAF was formed on 15 October 1942 in Topcliffe, England as a bomber squadron. On 1 January 1943 it joined No. 6 Group RCAF and took part in night bombing raids on Germany until 16 April 1943. It was then transferred to North Africa for attacks on Italian targets for three months and stationed in Tunisia during that time. Returning to the United Kingdom it was equipped with Halifaxes for a year and after January 1945 with Lancasters. During this period it was also known as No. 424 (Tiger) Squadron. The squadron disbanded on 15 October 1945 and was reactivated a year later at RCAF Station Hamilton as an auxiliary light bomber squadron, then deactivated again in 1964. On 8 July 1968, during the unification of the Canadian Forces, the squadron was reactivated as 424 Communications and Transport Squadron, operating from Hangar 9 at CFB Trenton. The squadron has received sixteen battle honours and has flown more than 14 different types of aircraft during its history.
On 27 October 2011, the squadron acknowledged the death of Sergeant Janick Gilbert, a Search and Rescue technician who perished while participating in a rescue mission in the waters of Nunavut.
On 17 December 2013, a Bell CH-146 Griffon helicopter from the squadron was dispatched from CFB Trenton to Kingston, Ontario to rescue a stranded crane operator above a large fire at a student housing project under construction. A Search and Rescue Technician was lowered by winch cable from the helicopter and successfully rescued the construction worker.
Bottomley, Captain Nora. 424 Squadron History: A detailed pictorial history of 424 Squadron (RCAF) from the its origins in 1935 to modern times. Kingston, Ontario, Canada: The Hangar Bookshelf, 1985. ISBN 0-920497-02-0.
Halley, James J. The Squadrons of the Royal Air Force & Commonwealth, 1981–1988. Tonbridge, Kent, UK: Air Britain (Historians) Ltd., 1988. ISBN 0-85130-164-9.
Moyes, Philip J.R. Bomber Squadrons of the RAF and their Aircraft. London: Macdonald and Jane's (Publishers) Ltd., 1964 (Second edition 1976). ISBN 0-354-01027-1.